Ballspline shaft with no ball retainer
US12146526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2021 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Feb 1, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shaft assembly for transmitting a torque in a driveline system. The shaft assembly comprises an outer shaft member that extends along an axis and includes an interior surface defining a bore and a plurality of outer grooves at least partially delimiting the bore. An inner shaft member extends along the axis and includes an outer surface defining at least one of a plurality of inner pockets or a plurality of inner grooves aligned with the outer grooves. At least one rolling element is located between the outer grooves and the inner pockets or the outer grooves and the inner grooves. At least one of the outer surface of the inner shaft or the inner surface of the outer shaft is configured to axially retain the at least one rolling element and the shaft assembly does not include a ball retaining cage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.